US124905A - Improvement in photo-engraving on metals - Google Patents
Improvement in photo-engraving on metals Download PDFInfo
- Publication number
- US124905A US124905A US124905DA US124905A US 124905 A US124905 A US 124905A US 124905D A US124905D A US 124905DA US 124905 A US124905 A US 124905A
- Authority
- US
- United States
- Prior art keywords
- metals
- silver
- photo
- engraving
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000002184 metal Substances 0.000 title description 4
- 229910052751 metal Inorganic materials 0.000 title description 4
- 150000002739 metals Chemical class 0.000 title description 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 10
- 229910052709 silver Inorganic materials 0.000 description 7
- 239000004332 silver Substances 0.000 description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 238000005530 etching Methods 0.000 description 4
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 3
- 239000010931 gold Substances 0.000 description 3
- 229910052737 gold Inorganic materials 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 235000010333 potassium nitrate Nutrition 0.000 description 2
- 239000001117 sulphuric acid Substances 0.000 description 2
- 235000011149 sulphuric acid Nutrition 0.000 description 2
- 241000218680 Pinus banksiana Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- QZPSXPBJTPJTSZ-UHFFFAOYSA-N aqua regia Chemical compound Cl.O[N+]([O-])=O QZPSXPBJTPJTSZ-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
- NICDRCVJGXLKSF-UHFFFAOYSA-N nitric acid;trihydrochloride Chemical compound Cl.Cl.Cl.O[N+]([O-])=O NICDRCVJGXLKSF-UHFFFAOYSA-N 0.000 description 1
- 239000000615 nonconductor Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
Definitions
- the object of this invention is to produce from a photograph, on metal or other surface, an engravingby a process of etching, as will be hereinafter explained.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- ing And Chemical Polishing (AREA)
Description
UNITED swims PATENT FFICE.
WILLIAM ALPHONSO MOGILL AND ROBERT GRANVILLE EINE, OF MEMPHIS,
. TENNESSEE.
llVIPROVEMENT IN PHOTO-ENGRAVlNG ONMETALSn Specification forming part of Letters Patent No. 124,905, dated March 26, 1872; anteduted March 19, 1872.
To all whom it may concern:
Be it known that we, WILLIAM A. MOGILL and ROBERT G. PINE, of Memphis, in the county of Shelby and State of Tennessee, have invented a new Process for Photographic Engraving on Metals and other substances; and we do hereby declare that the following is a full, clear, and exact description thereof.
The object of this invention is to produce from a photograph, on metal or other surface, an engravingby a process of etching, as will be hereinafter explained.
We take, as a base of operation, a pure silver surface or an alloy, and, after finely pol: ishing or frosting it, it is subjected to the action of iodine, and a film of the iodide of silver is formed on the plate. We then expose the plate to the action of light in the camera obscara, or under a photographic negative, until a faint image of the object is formed. The plate is then submitted to the action of an eleotrotype-battery, (copper solution,) when a well-defined image 'of the object in copper is formed, the cupreous deposit attaching itself only to those parts of the plate which were rendered conductors of electricity by the action of light, while the unexposed parts will remain non-conductors of electricity. The plate is now dried and etching solution poured on it, composed of sulphuric acid saturated with nitrate of potash or their equivalents.
This solution immediately attacks the shadows or exposed portions of silver surface, while the cupreous deposit from the electrotype-bath is not affected. After etching the required depth the copper deposit on the plate may be readily removed by aqua regz'a, which will not act on the silver plate, leaving a finely-etched image in the silver plate.
To engrave or etch on steel, gold, copper, and other substances, the surfaces are first coated with pure silver. We then proceed substantially as above explained, with the exception that different acids or combinations of acids are used on the various metals or other substances after the silver plating or surface is etched through, according to the nature of the base to be operated upon-for instance, in etching on gold, after the silver is etched through with the saturated solution of sulphuric acid and nitrate of potash, we use aqua regia or nitro-muriatic acid, which acts on the gold, but leaves the silver intact.
In carrying our invention into effect we shall apply it to the ornamentation of silver plate and jewelry, and also other purposes for which it is found applicable.
Having described our invention, what we
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US124905A true US124905A (en) | 1872-03-26 |
Family
ID=2194334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US124905D Expired - Lifetime US124905A (en) | Improvement in photo-engraving on metals |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US124905A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3081211A (en) * | 1960-02-08 | 1963-03-12 | Bendix Corp | Method of selective etching |
| US3287191A (en) * | 1963-07-23 | 1966-11-22 | Photo Engravers Res Inc | Etching of printed circuit components |
-
0
- US US124905D patent/US124905A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3081211A (en) * | 1960-02-08 | 1963-03-12 | Bendix Corp | Method of selective etching |
| US3287191A (en) * | 1963-07-23 | 1966-11-22 | Photo Engravers Res Inc | Etching of printed circuit components |
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